If you would like more pictures, please ask
By grabbing protective enchantments (Solitary Confinement, Transcendance, Phyrexian Unlife, etc.) first, then following up with Stax pieces to lock opponents (Blood Moon, Stasis, Humility, Back to Basics etc
If youre interested in rarity, each card game has a different system, but generally speaking the rarest cards will look the best, be the hardest to obtain, and generally be similarly valued on the secondary market
The highest cost of any activated ability is the dream of every casual player where you can just take your binder full of Eldrazi titans or your bucket of Hand of Emrakuls and Ulamog's Crushers and plop them onto the table
Note they don't have haste, and then they can be from anyone's graveyard too